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CHAPTER 3: Installation
3.3 WAN Interface
3.3.1 RS-232
OR
RS-530 M
ODELS
If you are attaching the Remote MiniBridge to:
• A
DCE
device with a
DB25 male
serial port: Securely
plug the RMB’s DB25 female WAN connector
directly into the device’s serial port.
• A
DCE
device with a
DB25 female
serial port:
Securely plug a M/M gender changer into the
device’s serial port, then plug the RMB’s DB25
female WAN connector directly into the gender
changer.
• A
DTE
device: You will need a special cable that
(a) has a DB25 male connector on the RMB end,
(b) has a connector that can mate with the DTE’s
serial-port connector on the DTE end, and
(c) is cross-pinned like a null-modem cable but
carries any necessary clock signal from the DTE
(call for technical support if you need such a
cable). Securely attach this cable to the RMB’s
WAN connector and to the DTE’s serial port.
Refer to the
Appendix
for the pinout of the RMB’s WAN
connector. Remember that for async WAN communica-
tion, you might have to tie some of the pins on the DB25
connector to ground; refer to
Section 2.2
.
